<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			.d2 {
				font-size: 30px;
			}

			.d3 {
				color: orange;
			}
			
			*{margin:0;padding:0}
		</style>
	</head>
	<body>
		<div>1</div>
		<div class="d2 d3">2</div>
		<div class="d2 d3">3</div>
	</body>
</html>
